OPC input module unknown upon worksheet startup. No sound card installed error.

Hi all,
I am on v11.00.00 and have two problems.
1. Upon startup, I get a 'no sound card installed' error despite having already selected the sound board from the Measurement tab. I've already checked the Windows Device manager and verified that the sound card is working OK.
2. Upon loading a worksheet, I get a module unknown error - in this case an OPC Input module for a DT9837B sound and vibration measurement box. I've already installed the DAQ OEM drivers.
Can anyone tell me what's wrong?
Thanks...

You may need to edit the sounddrv.ini file to change the device number.
The default file is this
[SETUP]
PlayWelcome=1
DisplayNoSoundCardMsg=0
InputDevice=0
OutputDevice=0
BitsPerSample=16
LeftVolume=50000
RightVolume=50000
SameVolume=1
Change InputDevice to =1
File is in the Public users folder (Documents and Settings\All Users on XP), in the DASYLab\11.0.0\Eng folder.
OPC and DT have nothing to do with each other. They may be conflicting, however, since both are add-on drivers. If you edit the DASYLab.ini file (same location as the SoundDrv.ini file), put a semicolon character ";" in front of the line that loads the OPCC.DLL.
If the line is missing (i.e., the DT installation obliterated it), change one of the other lines to be DLLx=Opcc.dll. That will add it back in.
Ensure that the DT driver is loaded. Both of these are in the [EXTEND] section of the file.

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present worksheet digital input only.JPG ‏67 KB
with analog input module.JPG ‏81 KB
error menu.JPG ‏77 KB

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Please tip your answer providers with kudos.
Any attached Code is provided As Is. It has not been tested or validated as a product, for use in a deployed application or system,
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OPC input module unknown upon worksheet startup. No sound card installed error.

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